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Phone	Samsung SCH-A770	Samsung Wafer R510	Samsung Sidekick 4G	ZTE Speed	Sony Ericsson Xperia X10 mini (2010)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Not yet released	Released	Released	Released	Not yet released
Display Size	?	1.9" diag. 4 : 3	3.5" diag. 5 : 3	4.5" diag. 16 : 9	2.6" diag. 4 : 3
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	220 x 176 pixels (~148 ppi) LCD (TFT/TFD)	480 x 800 pixels (~267 ppi) LCD (TFT/TFD)	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)	240 x 320 pixels (~157 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	60 Hz	60 Hz
Battery	1,100 mAh	800 mAh	?	2,000 mAh	?
Processor	?	?	1 GHz Samsung Hummingbird Cortex A8	1.2 GHz Qualcomm Snapdragon 410 MSM8916	600 MHz Qualcomm S1 MSM7227
RAM	?	?	?	1 GB	?
Storage	? raw hardware	? raw hardware	? raw hardware	8 GB	? raw hardware
Main Camera	1 megapixel	1 megapixel	3 megapixel	5 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	?	WVGA / 480p	720p HD	VGA (640 x 480)
Front Camera	-	-	Yes	2 megapixel	-
Weight	?	2.47 oz (70g)	5.7 oz (162g)	4.8 oz (136g)	3.11 oz (88g)
Dimensions	?	4.45" x 1.97" x 0.33" (113 x 50 x 8.4 mm)	5" x 2.42" x 0.6" (127 x 61 x 15.2 mm)	5.3" x 2.6" x 0.4" (135 x 66 x 10.2 mm)	3.26" x 1.97" x 0.64" (83 x 50 x 16.3 mm)
Form Factor	Clamshell	Slab	Slide	Slab	Slab
Platform / OS	(proprietary)	(proprietary)	Android	Android	Android
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	4G LTE: 25, 26, 41 CDMA: 800, 850, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *
Data Technology	1xRTT	EVDO r0	HSPA+ 21	LTE (Cat 3)	HSPA 7.2
Features
GPS / Location	Yes	Yes	n/a	n/a	n/a
Accessibility
Adjustable Text Size	-	-	n/a	n/a	n/a
Hearing Aid Compatible	-	Yes	Yes	Yes	-
Multiple Languages	Yes	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	-
Alerts
Extra Display	Yes	-	-	-	-
Ringer Profiles	Yes	-	-	-	-
Connectivity
Bluetooth	-	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio
Mobile Hotspot	-	-	n/a	n/a	n/a
USB	-	-	Yes Micro-USB	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	Yes 802.11 b,g
Contacts
Picture ID	Yes	Yes	n/a	n/a	n/a
Ringer ID	Yes	-	n/a	n/a	n/a
Voice Dialing	Yes	Yes	n/a	n/a	n/a
Customization
Custom Graphics	Yes	Yes	n/a	n/a	n/a
Custom Ringtones	Yes	Yes	n/a	n/a	n/a
Real-Music Ringers	-	-	n/a	n/a	n/a
Data & Network
Data Tethering	Yes	-	n/a	n/a	n/a
WAP / Web Browser	Yes	Yes	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	Yes	-	-
Touch Screen	-	-	Yes	Yes	Yes
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	-	-	n/a	n/a	n/a
Instant Messaging	-	-	n/a	n/a	n/a
MMS	Yes	Yes	n/a	n/a	n/a
Text Messaging Templates	Yes	-	n/a	n/a	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	-	-	Yes	Yes	Yes
Music Player	-	Yes	n/a	n/a	n/a
Stereo Speakers	-	Yes	-	-	-
Photo & Video
DLNA	-	-	Yes	-	-
Productivity
Alarm	Yes	Yes	n/a	n/a	n/a
Calculator	Yes	Yes	n/a	n/a	n/a
Calendar	Yes	Yes	n/a	n/a	n/a
To-Do List	Yes	-	n/a	n/a	n/a
Voice Memo	Yes	Yes	n/a	n/a	n/a
Software
BREW	Yes	Yes	n/a	n/a	n/a
Games	Yes	Yes	n/a	n/a	n/a
Voice
Call Screening	Yes	-	-	-	-
HD Voice	-	-	-	Yes	-
Headset Jack (2.5 mm)	Yes	-	n/a	n/a	n/a
Speaker Phone	-	Yes	Yes	Yes	Yes
	Samsung SCH-A770	Samsung Wafer R510	Samsung Sidekick 4G	ZTE Speed	Sony Ericsson Xperia X10 mini (2010)
	X >	< X >	< X >	< X >	< X

NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	Samsung SCH-A770	Samsung Wafer R510	Samsung Sidekick 4G	ZTE Speed	Sony Ericsson Xperia X10 mini (2010)